makemkvcon backup does not work for ISO source?

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joe42
Posts: 103
Joined: Mon Jan 03, 2011 7:44 pm

makemkvcon backup does not work for ISO source?

Post by joe42 » Mon Oct 05, 2015 11:24 pm

Is there a reason that

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  makemkvcon backup iso:sourcefile.iso /dest/dir/
does not work? It fails with the message

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  Backup source must start with "disc:"
However, makemkvcon is perfectly capable of using the same ISO file for a source with

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  makemkvcon info iso:sourcefile.iso
and converting to an mkv with

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  makemkvcon mkv iso:sourcefile.iso all /dest/dir/
I do not understand why makemkvcon fails on backup for ISO sources, but works with info or mkv.

By the way, I am just wanting to extract the files from a blu-ray ISO (already decrypted) with UDF 2.5 or 2.6 filesystem, without requiring root privileges to use mount -o loop -t udf sourcefile.iso . None of the usual userspace tools can do it (7zip, bsdtar, fuseiso) since they do not support UDF 2.5 or 2.6.

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